v3.0.0

This is the final v3 release, now published as @fastify/vite on npm.

Now an official core Fastify plugin!

This release brings support for Fastify v4 and Vite v3 — and eliminates the need to use an extra plugin on vite.config.js, the exception being the svelte-hydration example, which for some reasons defaults to CJS in the server build and needs a fix.

The fix is provided as the enforceESMBuild plugin, exported from @fastify/vite, used only in that example.

The plugin is now also covered by an extensive test suite for all examples and the package itself.